Your gateway to a wide range of natural resources information and associated maps

Victorian Resources Online

Potential Distribution of Illyrian thistle (Onopordum illyricum) in Victoria (Nox)

This map of the potential distribution of Illyrian thistle has been produced from CLIMATEŽ modelling overlayed with:

Overlays used

Land use:
Pasture irrigated and dryland
Broadacre cropping

Broad vegetation types:
Sub-alpine woodland; grassland; plains grassy woodland; coastal grassy woodland; herb-rich woodland; riverine grassy woodland; rainshadow woodland; mallee-heath; mallee woodland; heathy woodland; wimmera mallee/woodland; inland slopes and sedge-rich woodland.

Colours indicate possibility of Onopordum illyricum infesting these areas.
Red = Very High
Orange = High
Light Green = Medium
Dark Green = Likely
In the non-coloured areas the plant is unlikely to establish as the climate, soil or landuse is not presently suitable.

Further information on mapping potential distribution of weeds
Page top